At Visa, I build and harden Token Service Provider On-Prem capabilities for customer-managed payment environments, delivering Java/Spring tokenization, cryptographic flows, API security, and production remediation aligned with EMV and PCI DSS requirements.
I've also built SaaS attack-surface monitoring at Qualys, high-volume network analytics capabilities for NetScout's nGeniusONE, Niagara IoT connectivity at Honeywell, and data-integration services for energy and commodities trading at SunGard Global Services.

